/*
  Charliplexing.h - Library for controlling the charliplexed led board
  from JimmiePRodgers.com
  Created by Alex Wenger, December 30, 2009.
  Modified by Matt Mets, May 28, 2010.
  Released into the public domain.
*/

#ifndef Charliplexing_h
#define Charliplexing_h

#include <stdint.h>
#include <stdbool.h>

#define SINGLE_BUFFER 0
#define DOUBLE_BUFFER 1
#define GRAYSCALE     2

#define DISPLAY_COLS 14     // Number of columns in the display
#define DISPLAY_ROWS 9      // Number of rows in the display
#define SHADES 8 // Number of distinct shades to display, including black, i.e. OFF

extern volatile unsigned int LedSign_tcnt2;

void LedSignInit(uint8_t mode);
void LedSignSet(uint8_t x, uint8_t y, uint8_t c);
void LedSignSetBrightness(uint8_t brightness);
void LedSignFlip(bool blocking);
void LedSignClear(int set);
void LedSignHorizontal(int y, int set);
void LedSignVertical(int x, int set);

#endif